00:00 to 00:06First slow moving PDC front comes into scene, moving from left to right on the opposite bottom part of the channel. There seems to be only a moderate amount of ash, and to some extent the overriding cloud seems to vanish in parts (maybe due to a large water vapor component?), although some ash clearly lingers in the air.

00:11 to 00:18The clouds rapidly lift, possibly aided by convection, and perhaps dominated by gases (mainly water vapor and droplets) and with relatively low ash.

00:19 to 00:24A similar PDC wave comes across the scene in the center of the channel. The PDC is carrying logs and depositing them in this scene. The cloud of ash and gases/vapor doesn't dissipate that quickly and remains over the area.

00:25 to 00:30A continuous PDC can be seen moving across the channel bottom, carrying more rocks and logs, which move relatively slow and seem to come to rest.

00:31 to 01:00A series of PDC pulses seem to come across the area, producing an increase in ash and gases/vapor rising from the channel and obscuring the actual flow processes.

01:01 to 01:10The ash rising from the PDCs increases dramatically, and the sound of crushed and uprooted trees and vegetation (and perhaps colliding blocks) becomes very intense.

01:11 to 01:14A tree (~ 15 m tall), presumably at the slope of the channel wall, is repeatedly hit by the PDCs and violently taken down in a matter of ~ 2 seconds. The noise of crushed vegetation (and perhaps colliding blocks) remains very loud.

01:15 to 01:35Dense ash clouds continue to rise from the PDCs in the channel, engulfing the vegetation close to the channel margin, but in some cases quickly moving away.

01:36 to 01:42A tree (~ 15 m tall) on the left part of the screen is violently shaken by the PDCs in the channel (similar to what happens between 1:11 and 1:14).

01:43 to 01:49The camera momentarily moves away from the tree being impacted by the PDCs

01:50 to 01:59The camera focuses again on the tree being violently shaken by the PDCs.

02:00 to 02:02The tree is rapidly crushed by the PDC, appearing to be "sucked in" by the flow (probably being snapped or uprooted and leveled by the lateral impact of the PDCs. This happens so quickly that some of the leaves remain suspended in the air for a vew fractions of a second, and then slowly fall into the channel.

02:03 to 02:36Dense ash clouds rise repeatedly from the PDCs in the channel, but appear to also be partially sucked in by the complex air circulation near to channel margin (possibly influenced by the PDCs flow and the associated convection).

02:37 to 02:39A smaller tree (~ 10 m tall) is quickly "sucked into" the channel by the PDCs, in a similar way to the tree in 2:00 to 2:02.

02:40 to 02:47A group of birds (parrots?) can be heard in the background, probably escaping the area.

02:48 to 03:42Thick ash clouds keep rising from the PDCs in the channel, but the noise of vegetation and tress being crashed subsides. The circulation of the ash clouds suggests complex convection patterns near the channel.

03:43 to 07:19This part of the video shows the broader upwards convective circulation of the ash clouds, as they rise from the PDCs in the channel.